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magnesium soap

Skip it

Soft demand (-44.5% this quarter) — this niche doesn't clear our bar today.

Market size 8Growth 3Conversion 73Competition 24Returns 98Price range 83Avg price 85Brand share 41Review moat 40Quality gap 48

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Avg price

Great$18.82

avg listing price — sweet spot $15–$100

Price range

Great$6.96–$62.38

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.7%

search→purchase rate — share of searches ending in a sale

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay80%

top-5 brand share — brands hold most of the demand

Review moat

Okay2,528.5

avg incumbent reviews — the moat a new listing must climb

Competition

Bad71%

top-5 click share — a locked-up shelf

Market size

Bad$33K

$33K/yr · 27K searches

Growth

Bad-44.5%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United States niche tracking, magnesium soap is a $33K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 80% of demand. Verdict: Skip it — 42/100.

Data updated Jul 15, 2026 · scored weekly · How we score niches

magnesium soap market data

Units sold / yr
2K–3K
avg 100–250/product
Revenue / yr
$38K–$47K
units × avg price
Conversion rate
6.7%
Avg BSR
#1,311
Page quality
0%
Prime
100%
Sponsored
93%
Out of stock
0.0%
Avg brand age
59 months
Avg seller age
145 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 falling

Sellers

25

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

16%

  • Erbaid26%
  • Reveka Skincare23%
  • Olivia Care13%
  • Natrulo9%
  • One With Nature9%
  • OLLY4%
  • Open — no brand owns it (6 brands, 16%)

Demand

Weekly Amazon search volume, last 20 weeks — -44.5% search growth over the last 90 days.
1K600Mar '26Mar '26Apr '26May '26May '26Jun '26Jul '26

Top magnesium soap search terms

  • magnesium soap15K/yr
  • magnesium soap bar6K/yr
  • reveka magnesium soap6K/yr
All search terms

Top magnesium soap products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$3K20%$7K30%$10K40%$13K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

What buyers say about magnesium soap

What buyers praise and complain about, mined from review topics.

What buyers love

Smell36%

“It has a subtle, pleasant scent”

Soft Feel11%

“Nice & Creamy”

Lather8%

“Good lather”

Cleansing7%

“It cleans well enough”

Quality-Overall5%

“No complaints on the product”

Value For Money4%

“Great value”

Suitability Combination Skin3%

“It makes my skin feel so good”

Moist/Dry3%

“Does not dry out my skin”

Ease Of Cleaning2%

“Makes me feel super clean when I use it”

Advertised Vs Actual Product2%

“Better than advertised”

What buyers complain about

Smell27%

“The smell was synthetic”

Allergies8%

“I have itchy skin”

Sensitivity-Overall6%

“it leaves my sensitive”

Value For Money5%

“Its a little pricey in my opinion”

Moist/Dry5%

“doesn't feel moisturizing”

Lather5%

“This soap doesn't lather up as much as most other soaps”

Suitability Dry Skin2%

“Cons: very drying”

Ingredients-Overall2%

“Dishonesty about ingredients list”

Advertised Vs Actual Product1%

“advertisements are gimmicky”

Size-Overall1%

“Too small for the money”

Top return reasons

Smell50%
Motor Power9%
Advertised Vs Actual Product9%
Leak-Proof8%
Size-Overall4%
Moist/Dry4%
Defective Material/Parts3%
Functionality-Overall2%
Ingredients-Overall2%
Sensitivity-Overall1%

Common questions

Is magnesium soap profitable to sell on Amazon United States?
The niche generates $33K/yr across 14 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -44.5%. Flapen's verdict: Skip it (42/100).
How competitive is the magnesium soap niche?
12 brands and 25 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in magnesium soap?
Top complaints mined from reviews: Smell, Allergies, Sensitivity-Overall. The return rate is 0.5%.
What does it cost to enter the magnesium soap niche?
Listings span $6.96–$62.38; the average listing price is $18.82 (sweet spot $15–$100). The average incumbent carries 2,529 reviews — the moat a new listing must climb.